CK-12 Geometry - Second

1 CK-12 Geometry - Second Edition, Answer Key CK-12 Foundation Say Thanks to the Authors Click (No sign in required). AUTHOR. CK-12 Foundation To access a customizable version of this book, as well as other interactive content, visit CK-12 Foundation is a non-profit organization with a mission to reduce the cost of textbook materials for the K-12 market both in the and worldwide. Using an open-content, web- based collaborative model termed the FlexBook textbook, CK-12 . intends to pioneer the generation and distribution of high-quality educational content that will serve both as core text as well as provide an adaptive environment for learning, powered through the FlexBook Platform . Copyright 2015 CK-12 Foundation, The names CK-12 and CK12 and associated logos and the terms FlexBook and FlexBook Platform (collectively CK-12 Marks ) are trademarks and service marks of CK-12 . Foundation and are protected by federal, state, and international laws. Any form of reproduction of this book in any format or medium, in whole or in sections must include the referral attribution link (placed in a visible location) in addition to the following terms.

2 Except as otherwise noted, all CK-12 Content (including CK-12 . Curriculum Material) is made available to Users in accordance with the Creative Commons Attribution-Non-Commercial Unported (CC BY-NC ) License ( licenses/by- ), as amended and updated by Creative Com- mons from time to time (the CC License ), which is incorporated herein by this reference. Complete terms can be found at terms-of-use. Printed: February 25, 2015. iii Contents Contents 1 Basics of Geometry , Answer Key 1. Geometry - Second Edition, Points, Lines, and Planes, Review answers .. 2. Geometry - Second Edition, Segments and Distance, Review answers .. 5. Geometry - Second Edition, Angles and Measurement, Review answers .. 7. Geometry - Second Edition, Midpoints and Bisectors, Review answers .. 10. Geometry - Second Edition, Angle Pairs, Review answers .. 13. Geometry - Second Edition, Classifying Polygons, Review answers .. 14. Geometry - Second Edition, chapter Review answers .. 17. 2 Reasoning and Proof, Answer Key 18.

3 Geometry - Second Edition, Inductive Reasoning, Review answers .. 19. Geometry - Second Edition, Conditional Statements, Review answers .. 21. Geometry - Second Edition, Deductive Reasoning, Review answers .. 23. Geometry - Second Edition, Algebraic and Congruence Properties, Review answers .. 26. Geometry - Second Edition, Proofs about Angle Pairs and Segments, Review answers .. 29. chapter Review answers .. 33. 3 Parallel and Perpendicular Lines, Answer Key 34. Geometry - Second Edition, Lines and Angles, Review answers .. 35. Geometry - Second Edition, Properties of Parallel Lines, Review answers .. 37. Geometry - Second Edition, Proving Lines Parallel, Review answers .. 40. Geometry - Second Edition, Properties of Perpendicular Lines, Review answers .. 42. Geometry - Second Edition, Parallel and Perpendicular Lines in the Coordinate Plane, Review answers .. 43. Geometry - Second Edition, The Distance Formula, Review answers .. 47. chapter Review answers .. 49. 4 Triangles and Congruence, Answer key 50.

4 Geometry - Second Edition, Triangle Sums, Review answers .. 51. Geometry - Second Edition, Congruent Figures, Review answers .. 53. Geometry - Second Edition, Triangle Congruence using SSS and SAS, Review answers .. 55. Geometry - Second Edition, Triangle Congruence using ASA, AAS, and HL, Review answers . 58. Geometry - Second Edition, Isosceles and Equilateral Triangles, Review answers .. 60. chapter 4 Review answers .. 63. 5 Relationships with Triangles, Answer Key 64. Geometry - Second Edition, Midsegments of a Triangle, Review answers .. 65. Geometry - Second Edition, Perpendicular Bisectors in Triangles, Review answers .. 67. Geometry - Second Edition, Angle Bisectors in Triangles, Review answers .. 71. Geometry - Second Edition, Medians and Altitudes in Triangles, Review answers .. 73. Geometry - Second Edition, Inequalities in Triangles, Review answers .. 75. Geometry - Second Edition, Extension: Indirect Proof, Review answers .. 76. iv Contents chapter Review answers .

5 77. 6 Polygons and Quadrilaterals, Answer Key 78. Geometry - Second Edition, Angles in Polygons, Review answers .. 79. Geometry - Second Edition, Properties of Parallelograms, Review answers .. 81. Geometry - Second Edition, Proving Quadrilaterals are Parallelograms, Review answers .. 83. Geometry - Second Edition, Rectangles, Rhombuses and Squares, Review answers .. 86. Geometry - Second Edition, Trapezoids and Kites, Review answers .. 89. chapter Review answers .. 91. 7 Similarity, Answer Key 92. Geometry - Second Edition, Ratios and Proportions, Review answers .. 93. Geometry - Second Edition, Similar Polygons, Review answers .. 94. Geometry - Second Edition, Similarity by AA, Review answers .. 95. Geometry - Second Edition, Similarity by SSS and SAS, Review answers .. 96. Geometry - Second Edition, Proportionality Relationships, Review answers .. 97. Geometry - Second Edition, Similarity Transformations, Review answers .. 99. Geometry - Second Edition, Extension: Self-Similarity, Review answers .

6 101. chapter Review answers .. 103. 8 Right Triangle Trigonometry, Answer Key 104. Geometry - Second Edition, The Pythagorean Theorem, Review answers .. 105. Geometry - Second Edition, Converse of the Pythagorean Theorem, Review answers .. 106. Geometry - Second Edition, Using Similar Right Triangles, Review answers .. 109. Geometry - Second Edition, Special Right Triangles, Review answers .. 111. Geometry - Second Edition, Tangent, Sine and Cosine, Review answers .. 112. Geometry - Second Edition, Inverse Trigonometric Ratios, Review answers .. 113. Geometry - Second Edition, Extension: Laws of Sines and Cosines, Review answers .. 114. chapter Review answers .. 115. 9 Circles, Answer Key 116. Geometry - Second Edition, Parts of Circles and Tangent Lines, Review answers .. 117. Geometry - Second Edition, Properties of Arcs, Review answers .. 119. Geometry - Second Edition, Properties of Chords, Review answers .. 120. Geometry - Second Edition, Inscribed Angles, Review answers .

7 122. Geometry - Second Edition, Angles of Chords, Secants, and Tangents, Review answers .. 124. Geometry - Second Edition, Segments of Chords, Secants, and Tangents, Review answers .. 127. Geometry - Second Edition, Extension: Writing and Graphing the Equations of Circles, Review answers .. 128. chapter Review answers .. 129. 10 Perimeter and Area, Answer Key 130. Geometry - Second Edition, Triangles and Parallelograms, Review answers .. 131. Geometry - Second Edition, Trapezoids, Rhombi, and Kites, Review answers .. 132. Geometry - Second Edition, Areas of Similar Polygons, Review answers .. 134. Geometry - Second Edition, Circumference and Arc Length, Review answers .. 135. Geometry - Second Edition, Areas of Circles and Sectors, Review answers .. 136. Geometry - Second Edition, Area and Perimeter of Regular Polygons, Review answers .. 137. chapter Review answers .. 139. 11 Surface Area and Volume, Answer Key 140. Geometry - Second Edition, Exploring Solids, Review answers .

8 141. v Contents Geometry - Second Edition, Surface Area of Prisms and Cylinders, Review answers .. 143. Geometry - Second Edition, Surface Area of Pyramids and Cones, Review answers .. 144. Geometry - Second Edition, Volume of Prisms and Cylinders, Review answers .. 146. Geometry - Second Edition, Volume of Pyramids and Cones, Review answers .. 147. Geometry - Second Edition, Surface Area and Volume of Spheres, Review answers .. 148. Geometry - Second Edition, Exploring Similar Solids, Review answers .. 150. chapter Review answers .. 151. 12 Rigid Transformations, Answer Key 152. Geometry - Second Edition, Exploring Symmetry, Review answers .. 153. Geometry - Second Edition, Translations and Vectors , Review answers .. 155. Geometry - Second Edition, Reflections, Review answers .. 156. Geometry - Second Edition, Rotations, Review answers .. 158. Geometry - Second Edition, Composition of Transformations, Review answers .. 162. Geometry - Second Edition, Extension: Tessellations, Review answers .

9 163. chapter Review answers .. 164. vi chapter 1. Basics of Geometry , Answer Key C HAPTER. 1 Basics of Geometry , answer key chapter Outline G EOMETRY - S ECOND E DITION , P OINTS , L INES , AND P LANES , R EVIEW A N - SWERS. G EOMETRY - S ECOND E DITION , S EGMENTS AND D ISTANCE , R EVIEW A NSWERS. G EOMETRY - S ECOND E DITION , A NGLES AND M EASUREMENT, R EVIEW A N - SWERS. G EOMETRY - S ECOND E DITION , M IDPOINTS AND B ISECTORS , R EVIEW A N - SWERS. G EOMETRY - S ECOND E DITION , A NGLE PAIRS , R EVIEW A NSWERS. G EOMETRY - S ECOND E DITION , C LASSIFYING P OLYGONS , R EVIEW A NSWERS. G EOMETRY - S ECOND E DITION , C HAPTER R EVIEW A NSWERS. 1. Geometry - Second Edition, Points, Lines, and Planes, Review answers Geometry - Second Edition, Points, Lines, and Planes, Review answers For 1-5, answers will vary. One possible answer for each is included. 1. 2. 3. 4. 5.. 6. W X, YW , line m, XY and WY . 2. chapter 1. Basics of Geometry , Answer Key 7. Plane V or plane RST . 8. In addition to the pictures to the right, three planes may not intersect at all and can be parallel.

10 9. A circle.. 10. PQ intersects RS at point Q.. 11. AC and AB are coplanar and point D is not.. 12. Points E and H are coplanar, but their rays, EF and GH are non-coplanar.. 13. IJ , IK, IL, and IM with common endpoint I and J, K, L and M are non-collinear. 14. Always 15. Sometimes 16. Sometimes 17. Sometimes 18. Never 19. Always 20. Sometimes 21. Never 22. Always 23. Sometimes 24. #18: By definition, a point does not take up any space, it is only a location. #21: The ray is never read BA, . the endpoint is always stated first. 25. To make #15 true, they must be three non-collinear points. For #16, the two rays must lie on the same line, which it does not state. For #20, four points could be coplanar, but you only need three points to make a plane, so the fourth point could be in another plane. For #23, theorems can also be proven true by definitions and previously proven theorems. 26. The walls, ceiling and floor are all planes. When two of them intersect the intersection is a line ( the ceiling and a wall).